1,721,021 research outputs found
Comparative analysis of vibroacoustic measurements in a CLT building mock-up
No full textConstruction technology based on elements in Cross Laminated Timber (CLT) has assumed considerable importance in the context of wooden buildings and is now widely consolidated. This construction system has been extensively studied since its first appearance in the mid-1990s. The production of CLT elements is at an industrial level, and the manufacturing and fixing techniques are now standardised, as are the structural calculation methods and the prediction models for evaluating achievable performances. From an architectural point of view, the current trend is to use CLT in buildings that increasingly go beyond the traditional patterns of wooden buildings to move towards typologies that have previously been the prerogative of other construction systems, with tall buildings and considerable spans. Therefore, the need arises to deepen the
knowledge of the acoustic behaviour of the joints between CLT elements in cases not currently considered in the technical standards. This work shows the studies carried out on a CLT building mock-up made with twin structures and subjected to structural, seismic and acoustic tests
Correction to: Understanding of historical masonry for conservation approaches: the contribution of Prof. Luigia Binda to research advancement (Materials and Structures, (2018), 51, 6, (140), 10.1617/s11527-018-1254-4)
No full textThe article ‘‘Understanding of historical masonry for conservation approaches: the contribution of Prof. Luigia Binda to research advancement’’, written by ‘‘Anna Anzani, Giuliana Cardani, Paola Condoleo, Elsa Garavaglia, Antonella Saisi, Cristina Tedeschi, Claudia Tiraboschi, Maria Rosa Valluzzi’’, was originally published electronically on the publisher’s Internet portal (currently SpringerLink) on 16 October 2018 without open access. The copyright of the article changed in December 2019 to © The Author(s) 2019, and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made
Damage survey of a historic town and comparison with past events after the 2016 central Italy earthquake
Full text linkCentral Italy is an active seismic area and many earthquakes struck the historic centre of Campi Alto di Norcia
(Perugia) since its foundation in the 13th Cent. Nevertheless, every time, Campi has been restored without losing
its identity, until the shocks occurred in 2016 caused the definitive collapse of a large part of it.
Residential buildings have been restored introducing modern techniques and materials, as injections, jacketing
and substitution of structural parts, which showed, already in the 1997 Umbria-Marche earthquake, their
inefficiency and incompatibility with historic masonry. Therefore, today we can observe again the effects of the
recent interventions and evaluate them on large scale. A first damage evolution is here reported, by mapping the
damage levels to evaluate the causes of such a severe scenario.
Surveys and studies after the 1997 earthquake provided the first correlation between structural interventions and
damage, but major efforts were put in the definition of collapse mechanisms and in tools which could apply the
new approach. Other earthquakes (L’Aquila 2009, Emilia 2012) confirmed the aetiology of certain seismic
damages to specific interventions, but only qualitative relations were established. In addition, a description of
seismic effects interpreted also as a result of specific interventions is still missing, especially on quantitative
basis.
The paper presents a systematic damage survey supported by a GIS system and a specific form, both aimed at
defining, if possible, a relation between the damage on each intervention and the damage of a building as a
whole
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Pompei, Terme del Sarno: diagnostica sperimentale e indagini strutturali per la conservazione
No full textIl complesso delle Terme del Sarno è stato indagato mediante uno studio multidisciplinare realizzato da tre dipartimenti dell'Università di Padova in collaborazione con la Soprintendenza Speciale per i Beni Archeologici di Pompei e, successivamente, con il Parco Archeologico di Pompei, mirato alla valutazione delle condizioni dell'avancorpo meridionale, in vista della messa in sicurezza e la conseguente fruizione e valorizzazione del sito. Questo volume presenta i risultati dell'applicazione del percorso di conoscenza al manufatto, integrando l'analisi storica e delle trasformazioni con le evidenze materiche e strutturali, compendiate da procedure di diagnostica sperimentale non invasiva, e impostando modelli di comportamento (sia cinematico che numerico) per definire la sicurezza sismica e simularne il comportamento per le azioni attese.
I risultati ottenuti realizzano una base di partenza solida per la definizione mirata delle prossime strategie conservative da applicare al complesso, e forniscono un esempio metodologico estendibile ad altre realtà simili in campo archeologico e architettonico. / The Sarno Baths complex was investigated through a multidisciplinary study conducted by
three departments of the University of Padua in collaboration with the Special Superintendency
for the Archaeological Heritage of Pompeii and, afterward, with the Archaeological Park of
Pompeii. The study aimed to assess the condition of the southern forepart of the complex, with
a view to securing the site and its subsequent use and valorization. This volume presents the
results of applying the knowledge path to the complex: historical and transformation analyses
were integrated with material and structural evidences, and complemented by non-invasive
experimental diagnostic procedures. This allowed developing behavioral models (both kinematic
and numerical) to define the seismic safety of the structure and simulate its behavior for the
expected actions. The results provided a solid starting point for the targeted definition of future
conservation strategies to be applied to the complex. At the same time, they constitute a methodological example that can be extended to other similar archaeological and architectural sites
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